Title :
Text alignment with handwritten documents
Author :
Kornfield, E. Micah ; Manmatha, R. ; Allan, James
Author_Institution :
Dept. of Comput. Sci., Massachusetts Univ., Amherst, MA, USA
Abstract :
Today´s digital libraries increasingly include not only printed text but also scanned handwritten pages and other multimedia material. There are, however, few tools available for manipulating handwritten pages. Here, we propose an algorithm based on dynamic time warping (DTW) for a word by word alignment of handwritten documents with their (ASCII) transcripts. We see at least three uses for such alignment algorithms. First, alignment algorithms allow us to produce displays (for example on the Web) that allow a person to easily find their place in the manuscript when reading a transcript. Second, such alignment algorithms allow us to produce large quantities of ground truth data for evaluating handwriting recognition algorithms. Third, such algorithms allow us to produce indices in a straightforward manner for handwriting material. We provide experimental results of our algorithm on a set of 70 pages of historical handwritten material & specifically the writings of George Washington. Our method achieves 74.5% accuracy on line by line alignment and 60.5% accuracy when aligning whole pages at time.
Keywords :
digital libraries; document image processing; handwriting recognition; handwritten character recognition; text analysis; ASCII transcripts; George Washington writings; digital libraries; dynamic time warping; ground truth data; handwriting recognition algorithms; handwritten documents; historical handwritten material; multimedia material; scanned handwritten pages; text alignment algorithms; Computer science; Displays; Handwriting recognition; Heuristic algorithms; Image segmentation; Information retrieval; Mice; Software libraries; Vocabulary; Writing;
Conference_Titel :
Document Image Analysis for Libraries, 2004. Proceedings. First International Workshop on
Print_ISBN :
0-7695-2088-X
DOI :
10.1109/DIAL.2004.1263249